1 and 27 3 and 9
30 has four factor pairs:30,115,210,36,5
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
Six of them.
The only factors of 27 besides 1 and 27 are 3 and 9. So the factor pairs are 1 x 27 and 3 x 9.
The factor pairs of 27 are 1 x 27 and 3 x 9.
The factor pairs of 27 are 1x27 and 3x9.
1 and 27, 3 and 9
1 and 27 3 and 9
(27,1)(9,3)
Factors: 1, 3, 9, 27. Pairs: (1,27);(3,9).
(1, 27) and (3, 9)
The factors of 27 are 1,3,9, and 27. the factor pairs are 1X27 and 3X9.
They are (1, 27) and (3, 9).
The factor pairs of 135 are: 1, 135 3, 45 5, 27 9, 15
Sixteen factor pairs.
30 has four factor pairs:30,115,210,36,5